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Ensiling as pretreatment of rice straw: The effect of hemicellulase and Lactobacillus plantarum on hemicellulose degradation and cellulose conversion

文献类型： 外文期刊

作者： Zhao, Jie 1 ; Dong, Zhihao 1 ; Li, Junfeng 1 ; Chen, Lei 1 ; Bai, Yunfeng 2 ; Jia, Yushan 3 ; Shao, Tao 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Agrograssland Sci, Inst Ensiling & Proc Grass, Nanjing 210095, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Nanjing 210014, Jiangsu, Peoples R China

3.Inner Mongolia Agr Univ, Minist Agr, Key Lab Forage Cultivat Proc & High Efficient Uti, Hohhot 010018, Peoples R China

关键词： Rice straw; Hemicellulase; Lactobacillus plantarum; Enzymatic hydrolysis; Cellulose convertibility

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN： 0960-8524

年卷期： 2018 年 266 卷

页码：

收录情况： SCI

摘要： The fermentation characteristics, structural carbohydrate degradation and enzymatic hydrolysis of rice straw ensiled with hemicellulase and Lactobacillus plantarum were examined. Fresh rice straw was ensiled in 1-L laboratory silos with no additive control (CK), L. plantarum (L), hemicellulase (HC) and hemicellulase + L. plantarum (HCL) for 6, 15, 30 and 60 days. All additives increased lactic acid concentration, and reduced pH and lignocellulosic content of the resulting silage relative to the control. The highest organic acid and residual sugar contents and lignocellulose degradation were observed in HCL silage. Hemicellulase alone or combined with L. plantarum improved the enzymatic hydrolysis with higher glucose yield and cellulose convertibility. Fresh rice straw ensiled with the combined additives increased feedstock preservation and cellulose conversion, and is thus recommended as a biological pretreatment for subsequent biofuel production.

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